Will the other Atlassian billionaire buy a Sydney castle?
Hi tech billionaire business partner Scott Farquhar has quickly settled on his $71 million Elaine, Double Bay purchase with the paperwork showing it came without any mortgage.
Now the Atlassian co-founder Mike Cannon-Brookes and wife, Annie have a clear run in their search for their Sydney castle.
They have discretely looked at everything on offer starting with Boomerang at Elizabeth Bay which was listed in May last year.
They were then spotted inspecting the Queen Street, Woollahra listing, Clyde Cottage, the restored one-time childhood home of Dame Joan Sutherland.
No doubt the Centennial Park couple have also looked at Rona and Hordern House at Bellevue Hill.
With video-taking drones starting to appear above prospective luxury spring listings, there will soon be a fresh batch of other iconic Sydney homes for sale.
Barford at Bellevue Hill (above) will likely headline the battle among upmarket buyers.
The seven-bedroom mansion sits on 6000 square metres, one of Sydney's record setting inland trophy homes.
The Georgian-style house on Victoria Road last sold in late 1986 for $9,875,000 is the grand dame of Bellevue Hill, owned by businessman Ian Joye and wife Maggie who spend most of their time in Hawaii.
Built in 1931 by newspaper proprietor Sir Warwick Fairfax, it first sold in the late 1960s when bought by the former Melbourne car salesman, Emmanuel Margolin.
It has been a rental property for celebrities seeking a luxury mansion with exceptional privacy over the past two decades. It was rented to actor Will Smith during the time he was here to support his wife Jada Pinkett-Smith, who was in Sydney to work on the movie The Matrix Reloaded.
The co-founder of Atlassian, and his fashion-design industry wife, Annie were quickly not content at their Centennial Park Californian bungalow which cost $12 million in 2015 after selling for $10.5 million in Paddington.
They have added a rural 390 hectare weekender Joadja Creek Farm, that cost $3.3 million earlier this year.
There's also a $8.7 million Palm Beach holiday home.
There's another billionaires family on the lookout too.
Ginia Rinehart, daughter and heiress of Australia's richest woman Gina Rinehart, is still eyeing a home on Sydney's eastern seaboard.
Ginia and her husband Simon Robinson, who have been renting in Bondi, reputedly expressed limited interest on the suburb record breaking $10.35 million North Bondi home of philanthropist Tanya Carnegie that sold last month.
The couple's eastern suburbs home search dates back to 2015 when they reputedly missed out on the $15.65 million Bronte trophy home Wave House.
This article first appeared in The Daily Telegraph.